Water Temperature Ranges

Water temperature ranges Here are some water temperature ranges for saltwater and freshwater fish.

It should be noted that fish may swim through the lower and upper range listed here, but the preferred range is somewhere between the two.

Unlike migrating saltwater fish, freshwater species are locked into their environment and must remain whatever the temperature. These fish are comfortable at any temperature, because their body will adjust.

Freshwater fish will survive temperatures down to freezing. or to temperatures above 90 and 100 degrees, or to that point when the oxygen supply is shut off and they suffocate.